If the crystal frequency changes with temperature, we say that crystal has___________temperature coefficient?

Related Mcqs:

1. The crystal oscillator frequency is very stable due to___________of the crystal?

   A. Rigidity
   B. Vibrations
   C. Low Q
   D. High Q

2. Quartz crystal is most commonly used in crystal oscillators because:____________?

   A. It has superior electrical properties
   B. It is easily available
   C. It is quite inexpensive
   D. None of the above

3. The piezoelectric effect in a crystal is___________?

   A. A voltage developed because of mechanical stress
   B. A change in resistance because of temperature
   C. A change in frequency because of temperature
   D. None of the above

4. An important limitation of a crystal oscillator is____________?

   A. Its low output
   B. Its high Q
   C. Less availability of quartz crystal
   D. Its high output

5. The Q of the crystal is of the order of____________?

   A. 100
   B. 1000
   C. 50
   D. More than 10,000

6. The application where one would most likely find a crystal oscillator is____________?

   A. Radio receiver
   B. Radio transmitter
   C. AF sweep generator
   D. None of the above

7. In an LC oscillator, the frequency of oscillator is____________L or C?

   A. Proportional to square of
   B. Directly proportional to
   C. Independent of the values of
   D. Inversely proportional to square root of

8. In a phase shift oscillator, the frequency determining elements are _______________?

   A. L and C
   B. R, L and C
   C. R and C
   D. None of the above

9. In an LC oscillator, if the value of L is increased four times, the frequency of oscillations is __________?

   A. Increased 2 times
   B. Decreased 4 times
   C. Increased 4 times
   D. Decreased 2 times

10. ____________is a fixed frequency oscillator?

    A. Phase-shift oscillator
    B. Hartely-oscillator
    C. Colpitt’s oscillator
    D. Crystal oscillator